Four wires of same material and of dimensions as under are stretched by a load of same magnitude separately. Which one of them will be elongated maximum?

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Q:83

Wire of 1m length and 2 mm diameter

Wire of 2 m length and 2 mm diameter

Wire of 3 m length and 1.5 mm diameter

Wire of 1 m length and 1 mm diameter

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Three identical vessels A, B and C are filled with water, mercury and kerosene respectively up to an equal height. The three vessels are provided with identical taps at the bottom of the vessels. If the three taps are opened simultaneously, then which vessel is emptied first?

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